72 lines
1.9 KiB
Go
72 lines
1.9 KiB
Go
// Copyright 2023 The Forgejo Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package activitypub
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import (
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"context"
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"errors"
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"strings"
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user_model "code.gitea.io/gitea/models/user"
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"code.gitea.io/gitea/services/activitypub"
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ap "github.com/go-ap/activitypub"
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)
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// Process an incoming Follow activity
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func follow(ctx context.Context, follow ap.Follow) error {
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// Actor is the user performing the follow
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actorIRI := follow.Actor.GetLink()
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actorUser, err := user_model.GetUserByIRI(ctx, actorIRI.String())
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if err != nil {
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return err
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}
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// Object is the user being followed
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objectIRI := follow.Object.GetLink()
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objectUser, err := user_model.GetUserByIRI(ctx, objectIRI.String())
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// Must be a local user
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if err != nil || strings.Contains(objectUser.Name, "@") {
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return err
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}
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err = user_model.FollowUser(actorUser.ID, objectUser.ID)
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if err != nil {
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return err
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}
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// Send back an Accept activity
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accept := ap.AcceptNew(objectIRI, follow)
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accept.Actor = ap.Person{ID: objectIRI}
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accept.To = ap.ItemCollection{ap.IRI(actorIRI.String())}
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accept.Object = follow
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return activitypub.Send(ctx, objectUser, accept)
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}
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// Process an incoming Undo follow activity
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func unfollow(ctx context.Context, unfollow ap.Undo) error {
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// Object contains the follow
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follow, ok := unfollow.Object.(*ap.Follow)
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if !ok {
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return errors.New("could not cast object to follow")
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}
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// Actor is the user performing the undo follow
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actorIRI := follow.Actor.GetLink()
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actorUser, err := user_model.GetUserByIRI(ctx, actorIRI.String())
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if err != nil {
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return err
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}
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// Object is the user being unfollowed
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objectIRI := follow.Object.GetLink()
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objectUser, err := user_model.GetUserByIRI(ctx, objectIRI.String())
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// Must be a local user
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if err != nil || strings.Contains(objectUser.Name, "@") {
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return err
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}
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return user_model.UnfollowUser(actorUser.ID, objectUser.ID)
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}
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